For what condition is Dificid specifically indicated?

Dificid, also known as fidaxomicin, is specifically indicated for the treatment of Clostridium difficile (C. difficile) infections. This antibiotic is designed to target and combat C. difficile, a bacterium that can cause severe diarrhea and other intestinal issues, particularly after antibiotic use that disrupts normal gut flora. Fidaxomicin works effectively by inhibiting bacterial protein synthesis and is known for its narrow spectrum of activity, focusing mainly on C. difficile while preserving the beneficial gut bacteria. This targeted mechanism helps to combat the infection while minimizing the risk of further complications caused by the disruption of the microbiome.

The other options do not align with the specific indication for Dificid, as it is not approved for use in respiratory, skin, or urinary tract infections, which are caused by different types of pathogens that require different treatment approaches.